RiverFish

Perch · Perca fluviatilis

Perch in the River Bollin

Largest measured perch: 32 cm

The largest perch measured in Environment Agency surveys of the River Bollin was 32 cm, recorded at Bobo30 on 6 September 2004.

Across 69 measured perch, the median measured length was 13.1 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Bollin.

See perch records across England →

Most recent observation13 August 2025Bobo31 · 18 fish
Largest measured perch
32 cm
Median length
13.1 cm
Fish measured
69
Survey locations
12

Individual EA measurements

Largest measured perch

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
32 cm6 Sept 2004Bobo3082062
30.5 cm3 Aug 2010Bobo12123510
30.2 cm3 Aug 2010Bobo12123510
29.9 cm3 Aug 2010Bobo12123510
28.7 cm3 Aug 2010Bobo12123510
28.4 cm3 Aug 2010Bobo12123510
27.8 cm3 Aug 2010Bobo12123510
27 cm15 Jul 2005Bobo3085185
26 cm4 Aug 2005Bobo1685378
24.3 cm12 Jul 1999Mc0365803

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where perch were found

Each point marks a survey location with at least one perch record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding perch
Bobo3113 Aug 202513 Aug 20251
Bo017 May 20036 Jun 20136
Bobo1414 Oct 201014 Oct 20101
Bobo123 Aug 20103 Aug 20101
Bobo3018 Aug 200323 Jun 20086
Bobo2518 Aug 20037 Aug 20064
Bobo1612 Jul 19994 Aug 20052
Bobo207 Sept 20048 Jul 20052
Bo0324 Sept 200324 Sept 20031
Mc0312 Jul 199912 Jul 19991
Bobo1512 Jul 199912 Jul 19991
Bo2226 Jun 199626 Jun 19961

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1996–2025

Survey records by year

Each bar shows how many survey visits recorded perch that year.

Fish measured by surveyors

Measured length distribution

See how the 69 measured fish were spread across different length ranges.

Smallest
5.2 cm
Lower quarter
7.4 cm
Median
13.1 cm
Upper quarter
18.6 cm
Largest
32 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Bollin

Compare other species with enough survey and measurement data for a detailed page.

Stone loach 3-spined stickleback Bullhead Gudgeon Brown / sea trout Chub

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →